Thanks for that Chris. The exit is very well back though so what appears to be the standard mounting can be used. Looks like someone has simply added a 90° pipe to replace the standard rear exit one. The silencer and 90° rear exit are integral with the AR kit, exiting comfortably before the end of running board, and as shown below.
![[Linked Image]](https://i.imgur.com/UmE4iw2.jpg)
I have to say the slightly oval downward facing diffusers on the exits look great, matching those on the standard rear system. The removable end cap at front of silencer provides the possibility of extra sound absorbing if the AR sytem proves too loud. I have heard the AR rear exit system on a Brookland's Roadster though and that sounds great with a subtle boom.
@JohnV6, yes I spoke with him yesterday when I collected them. It was he who suggested I would have to fabricate an extra plate each side, providing some stainless and suggesting a couple of options. Was just wondering how the factory mounted them.